discourse/app/assets/stylesheets/common/admin/customize.scss

// Customise area
.customize {
  h1 {
    margin-bottom: 10px;
    input {
      margin-bottom: 0;
    }
  }
  .admin-container {
    padding-left: 10px;
    padding-right: 10px;
  }
  .admin-footer {
    margin-top: 20px;
  }
  .show-current-style {
    margin-left: 20px;
    float: left;
    width: 70%;
    h2 {
      margin-bottom: 15px;
    }
    h3 {
      margin-bottom: 10px;
      margin-top: 30px;
    }
  }

  .current-style.maximized {
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 100000;
    background-color: white;
    width: 100%;
    padding: 0;
    margin: 0;
    .wrapper {
      position: absolute;
      top: 20px;
      bottom: 10px;
      left: 20px;
      right: 20px;
    }
  }

  .nav.nav-pills.fields {
    margin-left: 10px;
  }
  .content-list, .current-style {
    float: left;
  }
  .content-list ul {
    margin-bottom: 10px;
  }
  .current-style {
    width: 100%;

    .admin-container {
      margin: 0;
    }

    .nav.target {
      li {
        position: relative;
      }
      margin-top: 15px;
      .fa {
        margin-left: 3px;
      }
      .fa-mobile {
        position: absolute;
        right: -4px;
        top: 2px;
        font-size: 1.5em;
      }
    }

    .toggle-maximize {
      position: absolute;
      right: -5px;
    }

    .ace-wrapper {
      position: relative;
      height: 600px;
      width: 100%;
    }

    &.maximized {
      .admin-container {
        position: absolute;
        bottom: 50px;
        top: 80px;
        width: 100%;
      }
      .admin-footer {
        position: absolute;
        bottom: 10px;
      }
      .ace-wrapper {
        height: 100%;
      }
    }

    .ace_editor {
      position: absolute;
      left: 0;
      right: 0;
      top: 0;
      bottom: 0;
    }

    .status-actions {
      float: right;
      margin-top: 7px;
      span {
        margin-right: 10px;
      }
    }

    .buttons {
      float: left;
      width: 200px;
      .saving {
        padding: 5px 0 0 0;
        margin-left: 10px;
        width: 80px;
        color: $primary;
      }
    }
  }
  .color-scheme {
    .controls {
      span, button, a {
        margin-right: 10px;
      }
    }
  }
  .colors {
    thead th       { border: none; }
    td.hex         { width: 160px; }
    td.actions     { width: 200px; }
    .hex-input     { width: 80px; margin-bottom: 0; }
    .hex           { text-align: center; }
    .description   { color: dark-light-choose(scale-color($primary, $lightness: 50%), scale-color($secondary, $lightness: 50%)); }

    .invalid .hex input {
      background-color: white;
      color: black;
      border-color: $danger;
    }
  }

  .status-message {
    display: block;
    font-size: 0.8em;
    margin-top: 8px;
  }
}